20
18 14 11 16 15 20 12 13 17 19 
16 20 12 15 14 13 11 18 17 19 
20 12 16 11 18 19 13 17 15 14 
19 15 13 18 20 11 14 12 16 17 
14 13 15 20 16 17 12 18 11 19 
11 17 20 12 18 13 16 14 15 19 
20 18 14 15 17 19 11 12 16 13 
18 17 14 11 15 13 19 16 20 12 
12 18 16 13 14 19 15 17 20 11 
18 16 19 11 17 13 20 12 15 14 
8 5 2 6 3 1 7 4 10 9 
2 8 7 6 3 10 4 1 5 9 
4 10 9 1 8 5 7 2 3 6 
2 1 6 9 3 7 10 4 8 5 
8 3 10 7 6 2 4 5 1 9 
7 3 6 1 2 10 9 5 8 4 
3 7 1 4 2 8 10 6 9 5 
8 1 7 3 10 4 6 5 9 2 
2 4 6 7 3 8 9 1 10 5 
1 4 3 6 10 7 5 9 8 2 
forbidden 1 12
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forbidden 4 11
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forbidden 5 11
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forbidden 6 11
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forbidden 7 19
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forbidden 8 11
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forbidden 8 20
forbidden 9 12
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